[people/pmueller/ipfire-2.x.git] / src / nash / linux_fs.h

/* Including <linux/fs.h> became more and more painful.
   Below a very abbreviated version of some declarations,
   only designed to be able to check a magic number
   in case no filesystem type was given. */

#ifndef BLKGETSIZE
#ifndef _IO
/* pre-1.3.45 */
#define BLKGETSIZE 0x1260		   /* return device size */
#else
/* same on i386, m68k, arm; different on alpha, mips, sparc, ppc */
#define BLKGETSIZE _IO(0x12,96)
#endif
#endif

#define MINIX_SUPER_MAGIC   0x137F         /* original minix fs */
#define MINIX_SUPER_MAGIC2  0x138F         /* minix fs, 30 char names */
struct minix_super_block {
	unsigned char   s_dummy[16];
	unsigned char   s_magic[2];
};
#define minixmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))

#define ISODCL(from, to) (to - from + 1)
#define ISO_STANDARD_ID "CD001"
struct iso_volume_descriptor {
	char type[ISODCL(1,1)]; /* 711 */
	char id[ISODCL(2,6)];
	char version[ISODCL(7,7)];
	char data[ISODCL(8,2048)];
};

#define HS_STANDARD_ID "CDROM"
struct  hs_volume_descriptor {
	char foo[ISODCL (  1,   8)]; /* 733 */
	char type[ISODCL (  9,   9)]; /* 711 */
	char id[ISODCL ( 10,  14)];
	char version[ISODCL ( 15,  15)]; /* 711 */
	char data[ISODCL(16,2048)];
};

#define EXT_SUPER_MAGIC 0x137D
struct ext_super_block {
	unsigned char   s_dummy[56];
	unsigned char   s_magic[2];
};
#define extmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))

#define EXT2_PRE_02B_MAGIC  0xEF51
#define EXT2_SUPER_MAGIC    0xEF53
#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
struct ext2_super_block {
	unsigned char 	s_dummy1[56];
	unsigned char 	s_magic[2];
	unsigned char	s_dummy2[34];
	unsigned char	s_feature_compat[4];
	unsigned char	s_feature_incompat[4];
	unsigned char	s_feature_ro_compat[4];
	unsigned char	s_uuid[16];
	unsigned char 	s_volume_name[16];
	unsigned char	s_dummy3[88];
	unsigned char	s_journal_inum[4];	/* ext3 only */
};
#define ext2magic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))

struct reiserfs_super_block
{
	unsigned char		s_block_count[4];
	unsigned char		s_free_blocks[4];
	unsigned char		s_root_block[4];
	unsigned char		s_journal_block[4];
	unsigned char		s_journal_dev[4];
	unsigned char		s_orig_journal_size[4];
	unsigned char		s_journal_trans_max[4];
	unsigned char		s_journal_block_count[4];
	unsigned char		s_journal_max_batch[4];
	unsigned char		s_journal_max_commit_age[4];
	unsigned char		s_journal_max_trans_age[4];
	unsigned char		s_blocksize[2];
	unsigned char		s_oid_maxsize[2];
	unsigned char		s_oid_cursize[2];
	unsigned char		s_state[2];
	unsigned char		s_magic[12];
};
#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
#define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
/* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
#define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)

#define _XIAFS_SUPER_MAGIC 0x012FD16D
struct xiafs_super_block {
    unsigned char     s_boot_segment[512];     /*  1st sector reserved for boot */
    unsigned char     s_dummy[60];
    unsigned char     s_magic[4];
};
#define xiafsmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
			(((unsigned int) s.s_magic[2]) << 16) + \
			(((unsigned int) s.s_magic[3]) << 24))

/* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
#define UFS_SUPER_MAGIC 0x00011954
struct ufs_super_block {
    unsigned char     s_dummy[0x55c];
    unsigned char     s_magic[4];
};
#define ufsmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
			 (((unsigned int) s.s_magic[2]) << 16) + \
			 (((unsigned int) s.s_magic[3]) << 24))

/* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
#define NTFS_SUPER_MAGIC "NTFS"
struct ntfs_super_block {
    unsigned char    s_dummy[3];
    unsigned char    s_magic[4];
};

/* From inspection of a few FAT filesystems - aeb */
/* Unfortunately I find almost the same thing on an extended partition;
   it looks like a primary has some directory entries where the extended
   has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
struct fat_super_block {
    unsigned char    s_dummy[3];
    unsigned char    s_os[8];		/* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
				/* mtools-3.9.4 writes "MTOOL394" */
    unsigned char    s_dummy2[32];
    unsigned char    s_label[11];	/* for DOS? */
    unsigned char    s_fs[8];		/* "FAT12   " or "FAT16   " or all zero   */
                                /* OS/2 BM has "FAT     " here. */
    unsigned char    s_dummy3[9];
    unsigned char    s_label2[11];	/* for Windows? */
    unsigned char    s_fs2[8];	        /* garbage or "FAT32   " */
};

#define XFS_SUPER_MAGIC "XFSB"
struct xfs_super_block {
    unsigned char    s_magic[4];
    unsigned char    s_dummy[28];
    unsigned char    s_uuid[16];
    unsigned char    s_dummy2[60];
    unsigned char    s_fname[12];
};

#define CRAMFS_SUPER_MAGIC 0x28cd3d45
struct cramfs_super_block {
	unsigned char    s_magic[4];
	unsigned char    s_dummy[12];
	unsigned char    s_id[16];
};
#define cramfsmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
			 (((unsigned int) s.s_magic[2]) << 16) + \
			 (((unsigned int) s.s_magic[3]) << 24))

#define HFS_SUPER_MAGIC 0x4244
struct hfs_super_block {
	unsigned char    s_magic[2];
	unsigned char    s_dummy[18];
	unsigned char    s_blksize[4];
};
#define hfsmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
#define hfsblksize(s)	((unsigned int) s.s_blksize[0] + \
			 (((unsigned int) s.s_blksize[1]) << 8) + \
			 (((unsigned int) s.s_blksize[2]) << 16) + \
			 (((unsigned int) s.s_blksize[3]) << 24))

#define HPFS_SUPER_MAGIC 0xf995e849
struct hpfs_super_block {
	unsigned char    s_magic[4];
	unsigned char    s_magic2[4];
};
#define hpfsmagic(s)	((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
			 (((unsigned int) s.s_magic[2]) << 16) + \
			 (((unsigned int) s.s_magic[3]) << 24))

struct adfs_super_block {
	unsigned char    s_dummy[448];
	unsigned char    s_blksize[1];
	unsigned char    s_dummy2[62];
	unsigned char    s_checksum[1];
};
#define adfsblksize(s)	((unsigned int) s.s_blksize[0])
Commit	Line	Data
330345c2 MT	1	/* Including <linux/fs.h> became more and more painful.
	2	Below a very abbreviated version of some declarations,
	3	only designed to be able to check a magic number
	4	in case no filesystem type was given. */
	5
	6	#ifndef BLKGETSIZE
	7	#ifndef _IO
	8	/* pre-1.3.45 */
	9	#define BLKGETSIZE 0x1260 /* return device size */
	10	#else
	11	/* same on i386, m68k, arm; different on alpha, mips, sparc, ppc */
	12	#define BLKGETSIZE _IO(0x12,96)
	13	#endif
	14	#endif
	15
	16	#define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
	17	#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
	18	struct minix_super_block {
	19	unsigned char s_dummy[16];
	20	unsigned char s_magic[2];
	21	};
	22	#define minixmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
	23
	24	#define ISODCL(from, to) (to - from + 1)
	25	#define ISO_STANDARD_ID "CD001"
	26	struct iso_volume_descriptor {
	27	char type[ISODCL(1,1)]; /* 711 */
	28	char id[ISODCL(2,6)];
	29	char version[ISODCL(7,7)];
	30	char data[ISODCL(8,2048)];
	31	};
	32
	33	#define HS_STANDARD_ID "CDROM"
	34	struct hs_volume_descriptor {
	35	char foo[ISODCL ( 1, 8)]; /* 733 */
	36	char type[ISODCL ( 9, 9)]; /* 711 */
	37	char id[ISODCL ( 10, 14)];
	38	char version[ISODCL ( 15, 15)]; /* 711 */
	39	char data[ISODCL(16,2048)];
	40	};
	41
	42	#define EXT_SUPER_MAGIC 0x137D
	43	struct ext_super_block {
	44	unsigned char s_dummy[56];
	45	unsigned char s_magic[2];
	46	};
	47	#define extmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
	48
	49	#define EXT2_PRE_02B_MAGIC 0xEF51
	50	#define EXT2_SUPER_MAGIC 0xEF53
	51	#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
	52	struct ext2_super_block {
	53	unsigned char s_dummy1[56];
	54	unsigned char s_magic[2];
	55	unsigned char s_dummy2[34];
	56	unsigned char s_feature_compat[4];
	57	unsigned char s_feature_incompat[4];
	58	unsigned char s_feature_ro_compat[4];
	59	unsigned char s_uuid[16];
	60	unsigned char s_volume_name[16];
	61	unsigned char s_dummy3[88];
	62	unsigned char s_journal_inum[4]; /* ext3 only */
	63	};
	64	#define ext2magic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
65
66	struct reiserfs_super_block
67	{
68	unsigned char s_block_count[4];
69	unsigned char s_free_blocks[4];
70	unsigned char s_root_block[4];
71	unsigned char s_journal_block[4];
72	unsigned char s_journal_dev[4];
73	unsigned char s_orig_journal_size[4];
74	unsigned char s_journal_trans_max[4];
75	unsigned char s_journal_block_count[4];
76	unsigned char s_journal_max_batch[4];
77	unsigned char s_journal_max_commit_age[4];
78	unsigned char s_journal_max_trans_age[4];
79	unsigned char s_blocksize[2];
80	unsigned char s_oid_maxsize[2];
81	unsigned char s_oid_cursize[2];
82	unsigned char s_state[2];
83	unsigned char s_magic[12];
84	};
85	#define REISERFS_SUPER_MAGIC_STRING "ReIsErFs"
86	#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
87	#define REISERFS_DISK_OFFSET_IN_BYTES (64 * 1024)
88	/* the spot for the super in versions 3.5 - 3.5.10 (inclusive) */
89	#define REISERFS_OLD_DISK_OFFSET_IN_BYTES (8 * 1024)
90
91	#define _XIAFS_SUPER_MAGIC 0x012FD16D
92	struct xiafs_super_block {
93	unsigned char s_boot_segment[512]; /* 1st sector reserved for boot */
94	unsigned char s_dummy[60];
95	unsigned char s_magic[4];
96	};
97	#define xiafsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
98	(((unsigned int) s.s_magic[2]) << 16) + \
99	(((unsigned int) s.s_magic[3]) << 24))
100
101	/* From jj@sunsite.ms.mff.cuni.cz Mon Mar 23 15:19:05 1998 */
102	#define UFS_SUPER_MAGIC 0x00011954
103	struct ufs_super_block {
104	unsigned char s_dummy[0x55c];
105	unsigned char s_magic[4];
106	};
107	#define ufsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
108	(((unsigned int) s.s_magic[2]) << 16) + \
109	(((unsigned int) s.s_magic[3]) << 24))
110
111	/* From Richard.Russon@ait.co.uk Wed Feb 24 08:05:27 1999 */
112	#define NTFS_SUPER_MAGIC "NTFS"
113	struct ntfs_super_block {
114	unsigned char s_dummy[3];
115	unsigned char s_magic[4];
116	};
117
118	/* From inspection of a few FAT filesystems - aeb */
119	/* Unfortunately I find almost the same thing on an extended partition;
120	it looks like a primary has some directory entries where the extended
121	has a partition table: IO.SYS, MSDOS.SYS, WINBOOT.SYS */
122	struct fat_super_block {
123	unsigned char s_dummy[3];
124	unsigned char s_os[8]; /* "MSDOS5.0" or "MSWIN4.0" or "MSWIN4.1" */
125	/* mtools-3.9.4 writes "MTOOL394" */
126	unsigned char s_dummy2[32];
127	unsigned char s_label[11]; /* for DOS? */
128	unsigned char s_fs[8]; /* "FAT12 " or "FAT16 " or all zero */
129	/* OS/2 BM has "FAT " here. */
130	unsigned char s_dummy3[9];
131	unsigned char s_label2[11]; /* for Windows? */
132	unsigned char s_fs2[8]; /* garbage or "FAT32 " */
133	};
134
135	#define XFS_SUPER_MAGIC "XFSB"
136	struct xfs_super_block {
137	unsigned char s_magic[4];
138	unsigned char s_dummy[28];
139	unsigned char s_uuid[16];
140	unsigned char s_dummy2[60];
141	unsigned char s_fname[12];
142	};
143
144	#define CRAMFS_SUPER_MAGIC 0x28cd3d45
145	struct cramfs_super_block {
146	unsigned char s_magic[4];
147	unsigned char s_dummy[12];
148	unsigned char s_id[16];
149	};
150	#define cramfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
151	(((unsigned int) s.s_magic[2]) << 16) + \
152	(((unsigned int) s.s_magic[3]) << 24))
153
154	#define HFS_SUPER_MAGIC 0x4244
155	struct hfs_super_block {
156	unsigned char s_magic[2];
157	unsigned char s_dummy[18];
158	unsigned char s_blksize[4];
159	};
160	#define hfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8))
161	#define hfsblksize(s) ((unsigned int) s.s_blksize[0] + \
162	(((unsigned int) s.s_blksize[1]) << 8) + \
163	(((unsigned int) s.s_blksize[2]) << 16) + \
164	(((unsigned int) s.s_blksize[3]) << 24))
165
166	#define HPFS_SUPER_MAGIC 0xf995e849
167	struct hpfs_super_block {
168	unsigned char s_magic[4];
169	unsigned char s_magic2[4];
170	};
171	#define hpfsmagic(s) ((unsigned int) s.s_magic[0] + (((unsigned int) s.s_magic[1]) << 8) + \
172	(((unsigned int) s.s_magic[2]) << 16) + \
173	(((unsigned int) s.s_magic[3]) << 24))
174
175	struct adfs_super_block {
176	unsigned char s_dummy[448];
177	unsigned char s_blksize[1];
178	unsigned char s_dummy2[62];
179	unsigned char s_checksum[1];
180	};
181	#define adfsblksize(s) ((unsigned int) s.s_blksize[0])